Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1038/s41561-019-0439-y |
Early evolution of a young back-arc basin in the Havre Trough | |
Tontini, Fabio Caratori1; Bassett, Dan1; de Ronde, Cornel E. J.1; Timm, Christian1,2; Wysoczanski, Richard3 | |
2019-10-01 | |
发表期刊 | NATURE GEOSCIENCE
![]() |
ISSN | 1752-0894 |
EISSN | 1752-0908 |
出版年 | 2019 |
卷号 | 12期号:10页码:856-+ |
文章类型 | Article |
语种 | 英语 |
国家 | New Zealand; Germany |
英文摘要 | Back-arc basins are found at convergent plate boundaries. Nevertheless, they are zones of significant crustal extension that show volcanic and hydrothermal processes somewhat similar to those of mid-ocean ridges. Accepted models imply the initial rifting and thinning of a pre-existing volcanic arc until seafloor spreading gradually develops over timescales of a few million years. The Havre Trough northeast of New Zealand is a unique place on Earth where the early stages of back-arc basin formation are well displayed in the recent geological record. Here we present evidence that, in this region, rifting of the original volcanic arc occurred in a very narrow area about 10-15 km wide, which could only accommodate minimal stretching for a very short time before mass balance required oceanic crustal accretion. An initial burst of seafloor spreading started around 5.5-5.0 million years ago and concluded abruptly about 3.0-2.5 million years ago, after which arc magmatism dominated the crustal accretion. The sudden transition between these different tectonomagmatic regimes is linked to trench rollback promoted by gradual sinking of the subducting lithosphere, which could have diverted the arc flux outside the region of seafloor spreading and induced the vertical realignment of surface volcanism with the source of arc melts at depth. |
领域 | 地球科学 ; 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000488223800016 |
WOS关键词 | CENTRAL VOLCANIC REGION ; NORTH-ISLAND ; MAGNETIC-ANOMALIES ; SW PACIFIC ; LAU BASIN ; TYRRHENIAN SEA ; PLATE MOTIONS ; KERMADEC ARC ; NEW-ZEALAND ; EXTENSION |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/187547 |
专题 | 地球科学 气候变化 |
作者单位 | 1.GNS Sci, Lower Hutt, New Zealand; 2.Helmholtz Ctr Ocean Res, GEOMAR, Kiel, Germany; 3.NIWA, Wellington, New Zealand |
推荐引用方式 GB/T 7714 | Tontini, Fabio Caratori,Bassett, Dan,de Ronde, Cornel E. J.,et al. Early evolution of a young back-arc basin in the Havre Trough[J]. NATURE GEOSCIENCE,2019,12(10):856-+. |
APA | Tontini, Fabio Caratori,Bassett, Dan,de Ronde, Cornel E. J.,Timm, Christian,&Wysoczanski, Richard.(2019).Early evolution of a young back-arc basin in the Havre Trough.NATURE GEOSCIENCE,12(10),856-+. |
MLA | Tontini, Fabio Caratori,et al."Early evolution of a young back-arc basin in the Havre Trough".NATURE GEOSCIENCE 12.10(2019):856-+. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论